B. Clocking > Line Rate Support
477
Tsi574 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
Using the Script
The example EEPROM loading script in the “EEPROM Scripts” appendix of the
Tsi574 User Manual
configures ports six and eight of the Tsi574. Other ports can be added to the script and configured by
editing the text. The script is written assuming that no other contents are required in the EEPROM.
Additional register configurations may be appended to the script as required, as well as the value
written to location 0 of the EEPROM to indicate the number (hex) of registers the bootloader is
required to initialize. For more information regarding configuring the contents of the EEPROM, see
“I2C Interface” in the
Tsi574 User Manual
.
B.1.1.2
Modification by Maintenance Transaction
Modification by maintenance transactions must occur after the link to the host processor tasked with
changing the port speeds has initialized. The process involves performing the sequence of operations
listed in
“Example Maintenance Transaction Sequence” on page 477
.
Example Maintenance Transaction Sequence
The following procedure configures port two. After these steps are complete, port two can train with its
link partner at a baud rate of 3.125Gbps.
1.
Reset the MAC by asserting SOFT_RST_x4 and leave the IO_SPEED set to 3.125
— Write offset 0x132C8 with 0x7FFF0012
2.
Set the BYPASS_INIT bit to enable control of the following: MPLL_CK_OFF, SERDES_RESET,
MPLL_PWRON, TX_EN, RX_PLL_PWRON, RX_EN
— Write offset 0x132C0 with 0xCA060084
3.
Clear the RX_EN bit in the SMAC_x SerDes Configuration Register Channel 0 - 3
— Write offset 0x132B0 with 0x203CA513
— Write offset 0x132B4 with 0x203CA513
— Write offset 0x132B8 with 0x203CA513
— Write offset 0x132BC with 0x203CA513
4.
Clear the RX_PLL_PWRON bit in the SMAC_x SerDes Configuration Register Channel 0 - 3
— Write offset 0x132B0 with 0x203C2513
— Write offset 0x132B4 with 0x203C2513
— Write offset 0x132B8 with 0x203C2513
— Write offset 0x132BC with 0x203C2513
5.
Clear the TX_EN field in the SMACx_CFG_CH0
— Write offset 0x132B0 with 0x200C2513
— Write offset 0x132B4 with 0x200C2513
The possibility of link instability exists should the process not be followed in the stated
sequence
Содержание IDT Tsi574
Страница 1: ...IDT Tsi574 Serial RapidIO Switch User Manual June 6 2016 Titl...
Страница 20: ...About this Document 20 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 34: ...1 Functional Overview JTAG Interface 34 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 100: ...4 Internal Switching Fabric Packet Queuing 100 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 224: ...11 Signals Pinlist and Ballmap 224 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 490: ...B Clocking P_CLK Programming 490 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 512: ...Index 512 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...